Unsure if this is a Mlem or Sopuli issue, but I have been having comments be empty after posting them. Even after multiple edits they are still empty. I went back and fixed a few of them with Arctic and the edits appear to have stayed (which leads me to believe this is a Mlem issue rather than my instance).
Has anyone else been experiencing this while using Mlem (possibly on a different instance).
Thanks for the bug report! Are you on Mlem 1.3 or the 2.0 beta?